Water guide device, self-cleaning photovoltaic roof intelligent control system and method thereof

Abstract

This invention discloses a water guiding device, a self-cleaning intelligent control system for photovoltaic roofs, and a method thereof, relating to the field of photovoltaic panel cleaning technology. The device includes: a panel body with a pressure plate on its upper side and a water-absorbing component between the pressure plate and the panel body; at least one drain outlet on the panel body; a magnetic component fixed to the panel body; a rotating shaft cooperating with the magnetic component fixed to one end of the pressure plate; a sliding groove on the panel body, arc-shaped with the axis of the rotating shaft as its center; a sliding rod fixed to the other end of the pressure plate, slidingly disposed within the sliding groove; and a driving component having a fixed part and a driving part, the fixed part being connected to the panel body and the driving part abutting against the pressure plate, with the driving part located on the pressure plate near the sliding rod. This solution has a simple structure, forming an anti-backflow isolation zone through step-by-step compression by the pressure plate, resulting in high water guiding efficiency. Combined with rainfall prediction and humidity monitoring, drainage is prioritized and scheduled to avoid system congestion.

Description

Technical Field

[0001] This invention relates to the field of photovoltaic panel cleaning technology, specifically to a water guiding device, a self-cleaning photovoltaic roof intelligent control system and method. Background Technology

[0002] Solar photovoltaic (PV) roofs, a key component of green energy applications, primarily consist of glass panels and frames. To ensure structural safety, the frame is typically taller than the glass panel, making it prone to water accumulation at the junction of the frame and glass panel when the PV panel is installed horizontally or at a small angle. This water accumulation not only affects the efficiency of the PV panels but also increases the risk of corrosion. Therefore, designing an efficient water drainage system is crucial, especially in ensuring smooth drainage while also enhancing the system's intelligence.

[0003] For example, patent CN 221929772 U discloses a photovoltaic panel water guide clip, including a substrate, a first snap-fit ​​plate and a second snap-fit ​​plate. The first snap-fit ​​plate and the second snap-fit ​​plate are respectively connected to one end of the substrate. The connection between the first snap-fit ​​plate and the substrate and the connection between the second snap-fit ​​plate and the substrate are provided with guide holes. The first snap-fit ​​plate is provided with a water absorption part corresponding to the top of the photovoltaic panel frame. The front end of the water absorption part extends to the junction of the frame and the glass panel, and the rear end extends to the guide hole. The first snap-fit ​​plate is provided with a telescopic motor and a pressure plate. The pressure plate is located at the top of the rear end of the water absorption part. The rear end of the water absorption part is also provided with a humidity sensor, which is electrically connected to the telescopic motor.

[0004] However, this solution still has the following problems: when the pressure plate squeezes the water-absorbing part, the entire pressure plate is squeezed downwards. This overall squeezing will cause the water in the water-absorbing part to flow out to both sides, which will cause some water to be squeezed back into the photovoltaic panel, affecting the drainage efficiency. At the same time, when multiple photovoltaic panels are deployed, this solution cannot intelligently adjust according to humidity, weather and other conditions. Summary of the Invention

[0005] To address the problems existing in the prior art, a water guiding device, a self-cleaning photovoltaic roof intelligent control system, and a method thereof are provided to solve the problems mentioned in the above technical background.

[0006] The technical solution adopted by this invention to solve its technical problem is:

[0007] This invention proposes a water guiding device, comprising:

[0008] A board body, wherein a pressure plate is provided on the upper side of the board body, and a water-absorbing element is provided between the pressure plate and the board body. The water-absorbing element is elastic, and at least one drain outlet is provided on the board body.

[0009] A magnetic component is fixed on the plate, and a rotating shaft that cooperates with the magnetic component is fixed at one end of the pressure plate;

[0010] A sliding groove is formed on the plate. When the rotating shaft is attracted by the magnetic component, the sliding groove is arranged in an arc shape with the axis of the rotating shaft as the center. A sliding rod is fixed to the other end of the pressure plate, and the sliding rod is slidably disposed in the sliding groove.

[0011] The driving component has a fixing part and a driving part. The fixing part is connected to the plate body, and the driving part abuts against the pressure plate. The driving part is located on the pressure plate at one end near the slide rod.

[0012] Preferably, the driving component includes a lead screw, one end of which is directly connected to a motor, and a lead screw nut is fitted onto the lead screw, with the lower end of the lead screw abutting against the upper surface of the pressure plate.

[0013] Preferably, a protrusion is fixed on one end of the nut near the rotating shaft, the protrusion protrudes from the lower end of the nut, and the protrusion abuts against the upper surface of the pressure plate.

[0014] Preferably, the upper surface of the pressure plate has a slope.

[0015] Preferably, the absorbent component is a sponge, the magnetic component is a magnet, and the magnet has a groove that matches the diameter of the rotating shaft.

[0016] A water guiding method, employing the aforementioned water guiding device, includes the following steps:

[0017] S1: The driving component drives the pressure plate to move, and the right end of the pressure plate moves downward to squeeze the water-absorbing component;

[0018] S2: The driving component continues to drive the pressure plate to move, causing the rotating shaft and magnetic component to disengage, and the left end of the pressure plate moves downward to squeeze the water-absorbing component;

[0019] S3: The driving component continues to drive the pressure plate to move, causing the pressure plate to further squeeze the absorbent component.

[0020] A self-cleaning photovoltaic roof intelligent control system includes the aforementioned water guiding device, and also includes clamps corresponding to a plurality of photovoltaic panels, wherein the panels are fixed to the upper ends of the clamps; it also includes a humidity sensor and a controller, wherein the humidity sensor is disposed inside the water-absorbing component, and both the humidity sensor and the driving component are connected to the controller.

[0021] Preferably, the clamp body is fixed with a plurality of protrusions, and there is a corresponding drain outlet between any two adjacent protrusions. The lower end of the clamp body is fixed with a lower clamping plate, and the lower clamping plate is provided with a plurality of guide holes, and there is a corresponding guide hole between any two adjacent protrusions.

[0022] A self-cleaning photovoltaic roof intelligent control method, employing the aforementioned self-cleaning photovoltaic roof intelligent control system, includes the following steps:

[0023] S1: The controller connects to the network to collect rainfall information and obtains the rainfall probability data of the area where the target photovoltaic roof is located;

[0024] S2: When the probability of rainfall is greater than the preset threshold, the controller sends a signal to the humidity sensor to increase the monitoring frequency of the humidity sensor;

[0025] S3: The controller collects information from the humidity sensors on each clamp to determine the drainage priority of each photovoltaic panel;

[0026] S4: The controller sends working instructions to the corresponding driving components in descending order of drainage priority. The driving components drive the pressure plate to squeeze the water suction component to drain the water.

[0027] S5: Repeat steps S3-S4 until rainfall stops or the probability of rainfall is less than the preset threshold, at which point the controller controls the humidity sensor to reduce the monitoring frequency.

[0028] Preferably, in S3, the drainage priority is calculated using the following formula:

[0029] Pi = α·Hi + β·1 / Di

[0030] Where Pi represents the drainage priority of clamp i; Hi represents the humidity level; Di represents the topological distance from clamp i to the control center; α and β are weighting coefficients, α=0.7 and β=0.3;

[0031] The clamp with higher drainage priority starts first, and the remaining clamps start with a delay according to their priority. The formula for calculating the delay time is as follows:

[0032] t i =k·(P max -P i )

[0033] Among them, t i Let P be the delay time of clamp i. max It has the highest priority, and k is a constant representing the baseline delay time.

[0034] Compared with the prior art, the beneficial effects of the present invention are:

[0035] 1. This application is equipped with a magnetic component. In the initial state, the magnetic component can attract the rotating shaft. At this time, the driving component presses down on the pressure plate, causing the pressure plate to rotate in a circle around the axis of the rotating shaft. This means that the slide rod gradually slides from the upper end to the lower end of the slide groove. One end of the pressure plate with the slide rod compresses one end of the water-absorbing component. Since the slide rod is located at the end close to the photovoltaic panel, when the remaining part of the water-absorbing component is pressed and squeezed, the water flow is difficult to return to the photovoltaic panel through the compressed water-absorbing component. This effectively reduces the situation where the water flow is squeezed back onto the photovoltaic panel, thus improving the water conduction efficiency.

[0036] 2. After the slide bar of this application slides to the bottom of the slide groove, the driving component presses down. When the driving force of the driving component is greater than the magnetic force of the magnetic component, the rotating shaft will disengage from the magnet, thereby causing the pressure plate to press the water-absorbing component as a whole, thus accelerating the drainage efficiency.

[0037] 3. When dealing with drainage of multiple photovoltaic panels, this application calculates the drainage level of each photovoltaic panel by obtaining the precipitation probability and combining it with the humidity monitoring of each photovoltaic panel. The higher priority panels start drainage first, and the other panels start delayed according to the priority and distance calculation. This allows the photovoltaic panels to drain water in a timely manner, reducing water accumulation on the photovoltaic panels. At the same time, it avoids the problem of congestion in the drainage system caused by multiple panels starting drainage at the same time, thus improving the drainage efficiency of the system. Attached Figure Description

[0038] The above and / or additional aspects and advantages of the present invention will become apparent and readily understood from the description of the embodiments taken in conjunction with the following drawings, in which:

[0039] Figure 1 This is a perspective view (view 1) of the clamp body of the present invention;

[0040] Figure 2 This is a perspective view (second view) of the clamp body of the present invention;

[0041] Figure 3 This is a front view of the clamp body of the present invention;

[0042] Figure 4 This is a schematic diagram of the installation of the clamp and the photovoltaic panel of the present invention;

[0043] Figure 5 This is a cross-sectional view of the water guiding device of the present invention (state one);

[0044] Figure 6 This is a cross-sectional view (state two) of the water guiding device of the present invention.

[0045] Figure 7 This is a cross-sectional view (state three) of the water guiding device of the present invention.

[0046] Figure 8This is a cross-sectional view (state four) of the water guiding device of the present invention.

[0047] Figure 9 This is a top view of the filament mother of the present invention.

[0048] Explanation of reference numerals in the attached figures:

[0049] 1. Panel; 2. Pressure plate; 3. Rotating shaft; 4. Slide groove; 5. Slide rod; 6. Motor; 7. Lead screw; 8. Lead nut; 9. Protrusion; 10. Clamping body; 11. Drain outlet; 12. Raised strip; 13. Lower clamping plate; 14. Guide hole; 15. Photovoltaic panel; 16. Sponge; 17. Magnet; 18. Guide groove; 19. Guide rod. Detailed Implementation

[0050] Embodiments of the present invention are described in detail below. Examples of these embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present invention, and should not be construed as limiting the present invention.

[0051] Example 1:

[0052] refer to Figure 1 - Figure 9 This embodiment proposes a water guiding device, including:

[0053] The board body 1 has a pressure plate 2 on its upper side, and a water-absorbing element is provided between the pressure plate 2 and the board body 1. The water-absorbing element is elastic, and at least one drain outlet 11 is provided on the board body 1.

[0054] A magnetic component is fixed on the plate 1, and a rotating shaft 3 that cooperates with the magnetic component is fixed at one end of the pressure plate 2.

[0055] The slide 4 is formed on the plate 1. When the rotating shaft 3 is attracted by the magnetic component, the slide 4 is arranged in an arc with the axis of the rotating shaft 3 as the center. The other end of the pressure plate 2 is fixed with a slide rod 5, which is slidably arranged in the slide 4.

[0056] The driving component has a fixing part and a driving part. The fixing part is connected to the plate 1, and the driving part abuts against the pressure plate 2. The driving part is located on the pressure plate 2 at one end near the slide rod 5.

[0057] The water-absorbing component is a sponge 16, and the magnetic component is a magnet 17. The elasticity of the sponge is less than the magnetic force of the magnet 17, and the elasticity of the sponge is greater than the weight of the pressure plate 2 itself. The magnet 17 has a groove that matches the diameter of the rotating shaft 3.

[0058] Specifically, the right side of the sponge 16 is the direction of water inflow, and the drain outlet 11 is located on the left side of the sponge 16.

[0059] The driving component includes a lead screw 7, one end of which is directly connected to a motor 6, and a lead screw nut 8 is fitted on the lead screw 7. The lower end of the lead screw nut 8 abuts against the upper surface of the pressure plate 2.

[0060] Specifically, the motor 6 is fixed to the plate 1 by bolts, the motor 6 forms the fixed part, the screw nut 8 forms the driving part, and a guide rod 19 is fixed on the motor 6 or the plate 1. The screw nut 8 is slidably connected to the guide rod 19. When the motor 6 is working, it drives the screw 7 to rotate, which in turn drives the screw nut 8 to move downward, thereby driving the pressure plate 2 to move downward.

[0061] A protrusion 9 is fixed on one end of the nut 8 near the rotating shaft 3. The protrusion 9 protrudes from the lower end of the nut 8 and abuts against the upper surface of the pressure plate 2.

[0062] Specifically, the bottom of the nut 8 is flat. By setting the protrusion 9, the surface contact between the nut 8 and the upper surface of the pressure plate 2 is changed to point contact or line contact. Thus, when the nut 8 moves downward, it abuts against the pressure plate 2 through the protrusion 9, reducing the friction between the nut 8 and the pressure plate 2, making the sliding between the pressure plate 2 and the nut 8 smoother when the nut 8 is pressed down.

[0063] Furthermore, to facilitate the subsequent horizontal pressing of the pressure plate, a small protrusion is fixed at one end of the nut 8 near the slide bar 5. The height of the small protrusion protruding from the lower end of the nut 8 is less than the height of the protrusion 9 protruding from the lower end of the nut 8.

[0064] Specifically, the small protrusion and protrusion 9 work together to achieve double-point pressing on the pressure plate 2 after the pressure plate 2 is driven to the bottom, transmitting the driving force of the motor to the entire section of the pressure plate 2, thereby achieving uniform compression of the sponge 16 by the pressure plate 2.

[0065] In some embodiments, the upper surface of the pressure plate 2 has a slope, that is, when the pressure plate 2 is placed horizontally, the height of the upper surface of the pressure plate 2 decreases from left to right. That is, in the initial state, the left side of the nut 8 and the pressure plate 2 are in line contact.

[0066] Specifically, in the initial state, the magnet 17 generates a stable attraction force on the rotating shaft 3, causing the rotating shaft 3 to be limited in the groove adapted on the magnet 17. The elastic restoring force of the sponge 16 acts upward on the pressure plate 2, causing the slide rod 5 to be located at the top of the slide groove 4. A cavity is formed between the pressure plate 2 and the plate body 1 to accommodate the sponge 16, and the sponge 16 is in a naturally stretched state.

[0067] When there is a lot of water in the absorbent and drainage is needed, the controller sends a start command to the drive unit. The motor 6 drives the lead screw 7 to rotate, and the lead screw drives the lead screw nut 8 to slide downward along the guide rod 19. The protrusion 9 at the lower end of the lead screw nut 8 abuts against the upper surface of the pressure plate 2, applying a downward driving force to the right side of the pressure plate 2, causing the drive unit to drive the pressure plate 2 to move downward. Since the attraction force of the magnet 17 on the rotating shaft 3 is greater than the resultant force of the downward driving force of the lead screw nut 8 and the elastic restoring force of the sponge 16, the rotating shaft 3 remains in place and rotates in the groove. The lead screw nut 8 then drives the slide rod 5 to slide along the slide groove 4 with the axis of the rotating shaft 3 as the center. During this process, the right end of the pressure plate 2 first compresses the side of the sponge 16 closest to the photovoltaic panel (i.e., the right side in the attached figure), thereby compressing the right side of the sponge 16 to form an isolation zone, reducing the backflow of water towards the photovoltaic panel.

[0068] When the slide rod 5 slides to the bottom of the slide groove 4, it can no longer move downwards. At this time, the nut 8 continues to apply a downward force to the pressure plate 2, and the driving force continues to increase. When the driving force is greater than the attraction force of the magnetic component on the rotating shaft 3, the driving force will cause the rotating shaft 3 to disengage from the magnet 17, thereby causing the left end of the pressure plate 2 to drop, realizing the squeezing of water on the left side of the sponge 16. Combined with the compression of the right side of the sponge 16 by the slide rod 5, most of the water flows to the left side of the sponge 16 and is discharged from the drain outlet 11.

[0069] Furthermore, since the sponge 16 has a certain elasticity and the nut 8 is located at the end near the slide bar 5, the position where the drive unit abuts against the pressure plate 2 is the fulcrum. The pressure plate 2 on the left side of the drive unit is longer and contacts more of the sponge 16. Therefore, the pressure plate 2 on the left side of the nut 8 receives a greater upward force than the pressure plate 2 on the right side of the nut 8. When the rotating shaft 3 disengages from the magnet 17, the pressure plate 2 is tilted with the left side higher than the right side. At this time, the drive unit continues to work, thereby causing the drive unit to drive the pressure plate 2 to continue to squeeze the absorbent component. The protrusion 9 and the small protrusion at the lower end of the pressure plate 2 cooperate to form a double-point abutment against the pressure plate, which evenly transmits the power to the entire section of the pressure plate 2, making the degree of compression of the sponge 16 by the pressure plate 2 nearly uniform, thereby squeezing out most of the water from the absorbent component.

[0070] After the drainage action is completed, the controller sends a flip command to the motor 6. The motor 6 drives the lead screw 7 to reverse, which drives the lead screw 8 to reset upward along the guide rod 19, releasing the downward driving force on the pressure plate 2. Under the action of the elastic force of the sponge 16, the pressure plate 2 is pushed upward to reset. The rotating shaft 3 is re-attracted by the magnet 17, and the slide rod 5 slides upward along the slide groove 4 to the top.

[0071] Example 2:

[0072] refer to Figures 1-9 This embodiment proposes a water guiding method, which uses the water guiding device described in Embodiment 1, and includes the following steps:

[0073] S1: The driving component drives the pressure plate 2 to move, and the right end of the pressure plate 2 moves downward to squeeze the water-absorbing component;

[0074] S2: The driving component continues to drive the pressure plate 2 to move, causing the rotating shaft 3 and the magnetic component to separate, and the left end of the pressure plate 2 moves downward to squeeze the water-absorbing component;

[0075] S3: The driving component continues to drive the pressure plate 2 to move, so that the pressure plate 2 as a whole further squeezes the water-absorbing component.

[0076] Specifically, in the initial state, that is, state one, the magnetic component generates a stable adsorption force on the rotating shaft 3, while the slide bar 5 is located at the top of the slide groove 4 under the action of the elastic force of the water-absorbing component. The water-absorbing component is in a naturally extended state and can normally absorb the water accumulated at the edge of the photovoltaic panel.

[0077] In S1, when the humidity inside the absorbent reaches a certain level, the controller sends a command to the drive unit. The drive unit drives the pressure plate 2 to move downward. Since the rotating shaft 3 is attracted by the magnetic component, the rotating shaft 3 rotates in place. The drive unit then drives the slide rod 5 to slide along the slide groove 4 with the axis of the rotating shaft 3 as the center, thereby squeezing the right side of the absorbent. This compresses the right side of the absorbent to form an isolation zone, reducing the backflow of water in the direction of the incoming water. At this time, the rotating shaft 3 on the pressure plate 2 is attracted by the magnetic component, the slide rod 5 is located at the bottom of the slide groove 4, and the pressure plate 2 is tilted as a whole, forming state two.

[0078] Specifically, in S2, after the rotating shaft 3 is separated from the magnetic component, due to the elasticity of the water-absorbing component, when the rotating shaft 3 is disengaged from the magnet 17, the pressure plate 2 is tilted with the left side higher than the right side, forming state three.

[0079] Specifically, in S3, the driving component continues to drive the pressure plate 2 downward based on state three, so that the left end of the pressure plate 2 continues to move downward, squeezing water out of the water-absorbing component, thus achieving overall squeezing of the water-absorbing component and forming state four.

[0080] Example 3:

[0081] This embodiment proposes a self-cleaning photovoltaic roof intelligent control system, including the water guiding device described in Embodiment 1, and also includes clamps 10 corresponding to a plurality of photovoltaic panels 15, with the upper ends of the panels 1 and clamps 10 fixed together; it also includes a humidity sensor and a controller, with the humidity sensor installed inside the water absorption component, and both the humidity sensor and the driving component connected to the controller.

[0082] Specifically, the plate 1 is installed on the photovoltaic panel 15 through the clamp 10. The humidity sensor monitors the humidity inside the water absorption component. When the humidity reaches the preset threshold, it sends a signal to the controller, which then controls the drive component to move, thereby causing the drive component to drive the pressure plate 2 to drain water from the water absorption component.

[0083] The clamp 10 has several protrusions 12 fixed on it, and there is a drain outlet 11 between any two adjacent protrusions 12. The lower end of the clamp 10 is fixed with a lower clamping plate 13, and there are several guide holes 14 on the lower clamping plate 13. There is a guide hole 14 between any two adjacent protrusions 12.

[0084] Specifically, the protrusion 12 is fixed on the side of the clamp 10 that is in contact with the photovoltaic panel. The protrusion 12 divides the inner side of the clamp 10 into multiple independent drainage chambers. Each drainage chamber corresponds to a drain outlet 11 and a guide hole 14, which avoids turbulence in the water flow inside the clamp 10 and ensures smooth drainage. At the same time, the protrusion 12 can act as a reinforcing rib, thereby improving the structural strength of the clamp 10.

[0085] Specifically, one side of the plate 1 extends outward to form an edge that matches the frame of the photovoltaic panel. Several guide grooves 18 are provided on the edge. The guide grooves 18 can break the surface tension of the water, so that the water can flow more smoothly through the guide grooves 18 and come into contact with the water absorption component.

[0086] Furthermore, each of the drainage holes 14 is detachably connected to a water distribution pipe, and also includes a main water pipe. Each water distribution pipe is connected to the main water pipe, which facilitates the guidance, discharge and collection of water flow on the photovoltaic panel.

[0087] Example 4:

[0088] refer to Figure 1 - Figure 9 This embodiment proposes a self-cleaning photovoltaic roof intelligent control method, which adopts the self-cleaning photovoltaic roof intelligent control system described in Embodiment 3, and includes the following steps:

[0089] S1: The controller connects to the network to collect rainfall information and obtains the rainfall probability data of the area where the target photovoltaic roof is located;

[0090] S2: When the probability of rainfall is greater than the preset threshold, the controller sends a signal to the humidity sensor to increase the monitoring frequency of the humidity sensor;

[0091] S3: The controller collects information from the humidity sensors on each clamp 10 to determine the drainage priority of each photovoltaic panel 15;

[0092] S4: The controller sends working instructions to the corresponding driving components in descending order of drainage priority. The driving components drive the pressure plate to squeeze the water suction component to drain the water.

[0093] S5: Repeat steps S3-S4 until rainfall stops or the probability of rainfall is less than the preset threshold, at which point the controller controls the humidity sensor to reduce the monitoring frequency.

[0094] In S3, drainage priority is calculated using the following formula:

[0095] P i =α·H i +β·1 / D i

[0096] Among them, P i H indicates the drainage priority of clamp i; i Indicates humidity level; D i This represents the topological distance from clamp i to the control center; α and β are weighting coefficients, α=0.7, β=0.3;

[0097] The clamp 10 with higher drainage priority starts first, and the remaining clamps 10 start with a delay according to their priority. The formula for calculating the delay time is as follows:

[0098] t i =k·(P max -P i )

[0099] Among them, t i Let P be the delay time of clamp i. max P is the highest priority. max The value is consistent with the number of clamps, and k is a constant representing the reference delay time, which is generally set to 2 seconds.

[0100] Specifically, H i The humidity level is indicated by at least three levels: dry = 0, moist = 1, and soaked = 2. To further improve the accuracy of the priority, it can also be set to 5 levels: dry = 0, semi-moist = 1, moist = 2, semi-soaked = 3, and soaked = 4.

[0101] Specifically, the controller connects to the network via API to collect weather forecast information. Based on the forecast of rainfall probability in the region, it adjusts the drainage strategy. When the expected probability of rainfall is high, the controller will activate the humidity sensor in advance to monitor and adjust the drainage priority to ensure timely drainage and avoid water accumulation.

[0102] Each clamp 10 is equipped with a wireless communication module, which exchanges information via the ZigBee protocol to form a self-organizing network structure. When the probability of rainfall exceeds a certain threshold, the controller sends instructions to all clamps 10 to increase the monitoring frequency of the humidity sensor, ensuring that the system can effectively prepare for drainage before water accumulation. A fault tolerance mechanism is also designed. When a clamp 10 fails to respond to instructions, the controller will automatically mark it as offline and recalculate the network topology to ensure that other clamps 10 can continue to operate normally. If the weather forecasting agent node fails, the system will automatically select a backup node to take over the rainfall forecasting task, ensuring the continuous updating of meteorological data.

[0103] Although embodiments of the invention have been shown and described, those skilled in the art will understand that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the claims and their equivalents.

Claims

1. A water guide device, characterized by, include: A plate (1) is provided with a pressure plate (2) on its upper side. A water-absorbing element is provided between the pressure plate (2) and the plate (1). The water-absorbing element is elastic. At least one drain outlet (11) is provided on the plate (1). Magnetic component, a magnetic component is fixed on the plate (1), and a rotating shaft (3) that cooperates with the magnetic component is fixed at one end of the pressure plate (2). The slide groove (4) is formed on the plate (1). When the rotating shaft (3) is attracted by the magnetic component, the slide groove (4) is arranged in an arc shape with the axis of the rotating shaft (3) as the center. The other end of the pressure plate (2) is fixed with a slide rod (5), which slides in the slide groove (4). The driving component has a fixing part and a driving part. The fixing part is connected to the plate (1), and the driving part abuts against the pressure plate (2). The driving part is located on the pressure plate (2) at one end near the slide rod (5).

2. A water guide according to claim 1, characterized in that The driving component includes a lead screw (7), one end of which is directly connected to a motor (6), and a lead screw nut (8) is fitted on the lead screw (7), with the lower end of the lead screw nut (8) abutting against the upper surface of the pressure plate (2).

3. A water guiding device according to claim 2, characterized in that, A protrusion (9) is fixed on one end of the nut (8) near the rotating shaft (3). The protrusion (9) protrudes from the lower end of the nut (8) and abuts against the upper surface of the pressure plate (2).

4. A water guide according to claim 2, wherein The upper surface of the pressure plate (2) has a slope.

5. A water guide according to claim 1, wherein The absorbent component is a sponge (16), and the magnetic component is a magnet (17). The magnet (17) has a groove that matches the diameter of the rotating shaft (3).

6. A water guiding method using the water guiding device according to any one of claims 1 to 5, characterized by, Includes the following steps: S1: The driving component drives the pressure plate (2) to move, and the right end of the pressure plate (2) moves downward to squeeze the water-absorbing component; S2: The driving component continues to drive the pressure plate (2) to move, causing the rotating shaft (3) and the magnetic component to separate, and the left end of the pressure plate (2) moves downward to squeeze the water-absorbing component; S3: The driving component continues to drive the pressure plate (2) to move, so that the pressure plate (2) as a whole further squeezes the water-absorbing component.

7. A self-cleaning photovoltaic roof intelligent control system comprising the water guide device of any one of claims 1-5, characterized in that, It also includes a clamp (10) corresponding to a number of photovoltaic panels (15), the upper end of the panel (1) being fixed to the clamp (10); it also includes a humidity sensor and a controller, the humidity sensor being disposed inside the water-absorbing component, and both the humidity sensor and the driving component being connected to the controller.

8. A self-cleaning photovoltaic rooftop intelligent control system according to claim 7, characterized in that, The clamp (10) is fixed with several protrusions (12), and there is a drain outlet (11) between any two adjacent protrusions (12). The lower end of the clamp (10) is fixed with a lower clamping plate (13), and there are several guide holes (14) on the lower clamping plate (13). There is a guide hole (14) between any two adjacent protrusions (12).

9. A self-cleaning photovoltaic roof intelligent control method, using the self-cleaning photovoltaic roof intelligent control system of any one of claims 7-8, characterized in that, Includes the following steps: S1: The controller connects to the network to collect rainfall information and obtains the rainfall probability data of the area where the target photovoltaic roof is located; S2: When the probability of rainfall is greater than the preset threshold, the controller sends a signal to the humidity sensor to increase the monitoring frequency of the humidity sensor; S3: The controller collects information from the humidity sensors on each clamp (10) and determines the drainage priority of each photovoltaic panel (15); S4: The controller sends working instructions to the corresponding driving components in descending order of drainage priority. The driving components drive the pressure plate to squeeze the water suction component to drain the water. S5: Repeat steps S3-S4 until rainfall stops or the probability of rainfall is less than the preset threshold, at which point the controller controls the humidity sensor to reduce the monitoring frequency.

10. In the self-cleaning photovoltaic roof intelligent control method according to claim 9, in S3, the drainage priority is calculated using the following formula: P i =α·H i +β·1 / D i wherein P i H indicates the drainage priority of clamp i; i Indicates humidity level; D i This represents the topological distance from clamp i to the control center; α and β are weighting coefficients, α=0.7, β=0.3; The clamp (10) with higher drainage priority starts first, and the remaining clamps (10) start later according to their priority. The formula for calculating the delay time is as follows: t i = k · (P max − P i ) where t i is the delay time of the clip i, P max is the highest priority, k is a constant, and represents the reference delay time.

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